The addition of a GReddy intercooler is one of the best ways to safely increase horsepower in a turbocharged engine. By reducing the engine's inlet temperatures, a denser air charge will enter the engine; this can make more horsepower at the same boost level and even more power at higher boost levels. Even if there is a factory-installed intercooler, generally these stock units are not ideal even for factory boost levels. They are usually mounted in awkward locations and become very susceptible to heat saturation. Factory intercoolers generally are not ideal for increased boost levels. GReddy Intercooler Kits are specifically designed, sized and fabricated for a wide variety of turbo applications.